Metres to Nautical miles Converter

This tool converts a length in metres into nautical miles, the unit used at sea and in the air for measuring distance and setting a course. Nautical miles are tied to the size of the Earth rather than to metres, so anyone reading a chart, planning a passage, working with GPS coordinates or checking an aviation or shipping distance needs a reliable way to move between the two. Enter your value in metres into the single input field, and the converter instantly returns the equivalent in nautical miles, using the exact factor of 0.000539957 nautical miles per metre. Because the nautical mile is internationally defined as exactly 1,852 metres, the conversion is precise rather than approximate, and the page also shows the reverse relationship so you can go from nautical miles back to metres just as easily. Below the calculator you will find the formula written out in full, a worked example converting 10 metres to nautical miles, and a quick-reference table covering common values from 1 to 100 metres, so you can check figures at a glance without doing the maths each time. It suits students learning navigation, boaties and sailors, pilots, surveyors and anyone who needs a quick, dependable metre to nautical mile conversion for study, travel or work.

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Value in metres (m)

0.000539957 nmi

1 m =0.000539957 nmi

1 nmi =1,852 m

The formula

Multiply metres by 0.000539957 to get nautical miles. In symbols, nmi = m × 0.000539957. To go the other way, multiply nautical miles by 1,852 to get metres.

Worked example

Convert 10 metres to nautical miles: 10 × 0.000539957 = 0.005399568 nautical miles.

Quick reference

Metres	Nautical miles
1 m	0.000539957 nmi
2 m	0.001079914 nmi
5 m	0.002699784 nmi
10 m	0.005399568 nmi
25 m	0.01349892 nmi
50 m	0.02699784 nmi
100 m	0.05399568 nmi

Frequently asked questions

How many nautical miles are in one metre?

One metre equals 0.000539957 nautical miles. Multiply the number of metres by 0.000539957 to convert.

What is the formula to convert metres to nautical miles?

Metres times 0.000539957 equals nautical miles. To reverse it, multiply nautical miles by 1,852 to get metres.

Is the m to nmi conversion exact?

The factor comes from the international definition of the nautical mile as exactly 1,852 metres, so the underlying conversion is exact. Displayed results are rounded for readability.

Who this converter is for

This converter is for students, tradespeople, travellers and anyone who needs to change metres into nautical miles quickly and accurately.